Barry K's EasyOS-Buster did not have the pango problem. It manifested itself under Dunfell in or about September 28, 2020. In responding to the problem Barry K wrote:
"The version of Pango in OE Dunfell is 1.44.7, in Debian Buster it is 1.42.4. Looking at the releases of OE/Yocto, going back in time from left to right: Dunfell Zeus Warrior Thud Sumo Rocko Pyro
Pyro was released May 2017. Warrior has Pango 1.42.4, so I might use that recipe and do a complete recompile. I hate to be going backwards, but it won't be the first time that I have done this (with other packages)." https://bkhome.org/news/202009/pango-ve ... aster.html.
Of course, the best way to solve the problem would be to compile Pango 1.42.4 for Fossapup. [Edit: See and use OscarTalks pets two posts down. I wish he had been quicker. ] But is pango 'kernel specific'? If not, can an older version of pango be 'injected'? Would doing so conflict with the installed version? If not, the Ubuntu repo for Bionic Beaver holds libpango-1.40.14-1ubuntu0.1, https://packages.ubuntu.com/bionic/libpango-1.0-00 and its dependency libthai0 (>= 0.1.22-3~) and note libthai0's dependencies, and follow their links to other dependencies. Also note that these appear to be available in the Focal Fossa repositories. It may be possible to install those via Fossapup's Puppy Package Manager, creating symbolic links to the fossa files giving the symbolic links the names the bionic pango expects to use. [A simple download via browser + install might suffice; but it would probably be better to install sc0ttman's PKG-Cli, https://oldforum.puppylinux.com/viewtop ... fe#p985531 and configure it to make use of the Bionic Beaver repo].
Fossapup64's default kernel package is 5.4.43. Would swapping kernels to an older version work-around the problem? I note Barry K's last EasyOS-Buster [published after the above report] had kernel 5.4.84. But I don't think EasyOS's kernels can be swapped with Puppys. josejp2424's dpupbuster, viewtopic.php?f=33&t=67&p=158&hilit=dpup+buster#p158, used kernel 4.19.23.
The OP probably doesn't know how easily kernels are swapped under Puppies. Thanks primarily to bigpup's previous post, many kernel packages are available from the links on this post: viewtopic.php?f=65&t=2740 and others can be found from this Section, viewforum.php?f=65
Caution: The attached may entirely muck-up your Fossapup64. And even if it doesn't, it may not work. Note all the possible problems I mentioned above about package conflicts. I'll also mention that Fossapup may not be configured to use this older packaged. Consider this as an implementation of the adage "Hope for the best, but prepare for the worst". Before trying this, backup your SaveFile/Folder and have some way to boot up your computer without using Fossapup64 SaveFile/Folder into which it will be installed. Ask if you need instructions.
The attached is a minimal pango package from Bionicpup64. Install it and restart-x. An entire reboot may be needed for Fossapup to recognize the package; and when it does, among the possible results are a hung computer or an unreadable display.
If at first it doesn't work, but doesn't entirely screw up Fossapup you can try the following: Uninstall this pet. Then run Menu>Setup>Remove builtin packages, select Pango. Then reinstall the attached pet and restart-x. And, as before, a reboot may be necessary.